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2021 Swanson KGSF
Post Office Box 244027 Anchorage, AK 99524-4027 3800 Centerpoint Drive Suite 100 �+ Anchorage, AK 99503 Hilcorp Alaska, LLC Phone: 907/777-8300 Fax:907/777-8301 February 28, 2022 Jesse Chmielowski, Commissioner Alaska Oil and Gas Conservation Commission 333 W. 7th Avenue, Suite 100 Anchorage, AK 99501-3539 RE: 2021 Annual Material Balance Calculations of Production and Infection Volumes: Kenai Gas Storage Facility #1(KGSF#1, KGSF#1A & KGSF#7A), Swanson River Field Commissioner Chmielowski: Attached for Alaska Oil and Gas Conservation Commission (AOGCC) review is the 2021 annual material balance calculation of production and injection volumes for the Kenai Gas Storage Facility #1 as required per Storage Injection Order #2A. This material balance includes all primary production from the Tyonek 64-5 reservoir (via SRU 43-28), as well as all storage operations from the gas storage wells KGSF #1, KGSF#1A (sidetracked from KGSF#1 in Fall 2020), and KGSF VA. Primary production occurred December 1998 — May 2001 with storage operations on -going since June 2001. Gas storage production and injection volumes for KGSF #1 (formerly SRU 43-28), KGSF#1A, and KGSF#7A have been reported to the state monthly through December 31, 2021. KGSF#1 was last online in March 2020, when it sanded up and could not be repaired. That well was re -drilled as KGSF#1A in October 2020 and brought online in mid -November 2020. Pressures from the Tyonek 64-5 reservoir have been measured/estimated from both downhole pressure buildups and from surface shut-in tubing pressures. Surface readings were converted to downhole pressures at a common datum of 6,369' TVD. All data points are tabulated in Attachment #1 and plotted versus the net cumulative production (production less injection) on the standard P over Z plot, shown in Attachment #2. The P over Z plot shows that the 2021 production and injection cycle followed the primary production profile as expected. This storage reservoir continues to contain the gas within zone and is an important resource in helping meet peak gas requirements during the winter season. Please contact me at (907) 777-8430 with any questions regarding this report. Sincerely, aniel ylor Reservoir Engineer, P.E. 143467 Attachments: 1. Tyonek 64-5 Sand POZ Data 2. KGSF #1 Facility (Tyonek 64-5 Sand) - P/Z vs Cumulative Production Plot ATTACIINMNT #1 -- KGSF POZ DATA (64-5 Sand) Parameter 'Value Units Gas Gravity 0.563 Bench Datum 6369 It (rid) Datum Temp. 122 " F .Avg Temp. 102 "F Wellname Date Test Type Test Duration "`tea` Measured Pressure at Z Factor Datum Pressure, Cum Gas, bcf P2, Psia (hre) Test Depth MTD, psi Psia MTD ft Primary Production 12/05/98 SITP 2850 0.8781 3306 0.0000 3765 07/27/99 SITP 1775 0.8529 2059 0.5610 2414 09/09/00 BHP buildup g6395 882 0.8954 1100 1.0690 1229 02/20/01 SITP 540 0.9353 626 1.2700 669 06/09/01 SITP 0 380 0.9533 441 1.3390 463 2001/2002Injection e 07/11/01 ISITP 21 0 875 0.9018 1015 1.1480 1126 09/18/01 SITP 4 0 1820 0.8522 2111. 0.6730 2477 109/20/01 SITP 24 0 1810 0.8524 2099 0.6780 2463 10/09/01 SITP 8 0 1980 0.8514 2297 0.5720 2698 04/05/02 SITP 15 0 2280 0.8551 1 2645 0.4000 3093 07/12/02 -SITP 0 2620 0.8666 3039 0.1900 3507 07/26/02 -SITP 0 2630 0.8671 1 3050 1 0.2000 3518 2002/2003 Production Cycle 2003 In ectlon pycle 12/29/03 SITP 19 0 2440 0.8596 2829 0.2540 3291 2003/2004 Production Cycle 04/28/04 SITP 24 0 2075 0.8518 2406 0.4450 2825 20041nlection Cycle 2004/2005 Production Cycle 06/08/05 JSITP 6 0 2080 0.8518 1 2412 1 0.3960 2832 2005 Iniectsion Cycle _ 2005/2006 Production Cycle 03/22/O6 ISITP 24 1 0 1 1905 0.8515 2209 0.4208 2594 2006 Injection Cycle #N/A 07/10/06 -SITP 240 0 2815 0.8761 3264 -0.0482 3726 08/14/06 -SITP 456 0 2687 0.8697 3116 0.0303 3583 09/30/06 SITP 288 0 2815 0.8761 3264 -0.0678 3726 2006/2007 Production C de 12/04/06 ISITP 18.5 0 2665 0.8686 3090 0.0329 3551 01/10/07 JSITP 9 0 2450 0.8600 2841 1 0.0763 1 3304 03/26/07 SITP 96 0 2231 1 0.8540 1 2587 1 0.2442 1 3029 2007 Injection C cie 04/27/07 ISITP 192 0 2828 0.8768 1 3279 -0.0314 3740 06/04/07 1 SITP 120 0 2711 0.8708 3144 1 0.0206 1 3610 09/11/07 1 SITP 648 0 2717 0.8711 3151 1 -0.0028 1 3617 2007/2008 Production Cycle 12/02/07 SITP 144 0 2604 0.8654 3005 1 0.0204 3413 01/17/08 ISITP 192 0 2078 1 0.8517 2397 0.3056 2814 04/08/08 JSITP 888 0 1 1760 1 0.8534 1 2026 1 0.4748 2374 2008Injection Cycle 1760 05/02/08 ISITP 1320 0 1925 0.8515 2218 0.4086 2605 07/01/08 SITP 528 0 2643 0.8670 3049 0.0799 3517 07/28/08 ISITP 528 0 2648 0.8673 3055 0.0728 3523 2008/2009 Production 2009 Injection cie 06/14/09 ISITIP 240 1 0 1 2781 1 0.8736 1 3P09 0.0388 3673 07/13/09 SITP 1008 0 2850 0.8772 3287 -0.0492 3747 08/10/09 ISITP 552 0 2828 0.8760 1 3262 -0.0489 3724 2009/2010 Production Cycle 10/12/09 SITP 96 0 2630 0.8740 3218 -0.0552 3682 01/24/10 SITP 96 0 2528 0.8665 3036 0.0191 3504 03/08/10 SITP 24 0 2231 0.8624 2919 0.0842 3385 08/11/10 SITP 336 0 2313 0.8556 2671 0.2266 3122 2010/2011 In' clion and Production C cle 10/20/10 SITP 168 0 3134 0.8948 3626 -0.3103 4052 12/08/10 SITP 20 0 3021 0.8879 3500 -0.2949 3942 12/21/10 SITP 20 0 2727 0.8722 3176 -0.1455 3641 03/01/11 SITP 24 0 1123 0.8813 1310 0.5776 1486 KGSF#7A 03/21/11 PBU 48 5300 775 0.8904 1035 0.6857 1162 2011/2012 Injection and Production Cycle KGSF#1 05/20/11 PBU 528 6650 1119 0.8735 1445 0.6857 1654 KGSF#1 06/27/11 PBU 20 6376 2345 0.8588 2802 0.2062 3263 KGSF#1 07/04/11 PBU 72 5300 0.8567 2720 0.1768 3175 KGSF#1 07/31/11 -SITP 576 0 2395 0.8582 2777 0.1515 3236 KGSF#1 09/23/11 SITP 48 0 2596 0.8656 3010 0.0584 3478 KGSF#1 10/04/11 SITP 312 0 2585 0.8651 2998 0.0586 3465 KGSF#1 11/01/11 SITP 288 0 2758 0.8731 3198 -0.0417 3663 KGSF #1 12/20/11 SITP 2869 0.8942 3266 -0.0666 3652 KGSF #1 102/01/12 SITP 0 2185 0.8735 2491 0.2474 2852 KGSF #1 03/04/12 SITP 0 2358 0.8764 2688 0.1799 3067 KGSF #1 04/24/12 SITP 0 2004 0.8724 2284 0.3638 2618 KGSF #1 05/10/12 SITP 0 1963 0.8724 2237 0.3819 1 2564 KGSF#7A 05/31/12 PBU 24 6385 1917 0.8555 2247 0.4181 2627 KGSF #1 06/07/12 SITP 0 L 1934 0.8725 1 2204 0.4103 2526 2012/2013 Injection and Production Cycle KGSF #1 07/25/12 SITP 0 2057 0.8725 2345 0.3677 2688 KGSF #1 07/27/12 PBU 696 0 2043 0.8516 2375 0.3679 2789 KGSF #1 10/29/12 SITP 0 2856 0.8937 3252 -0.0348 3639 KGSF #1 12/17/12 SITP 0 2193 0.8736 2500 0.2702 2862 KGSF #1 01/17/13 SITP 0 2523 0.8805 2950 0.1700 3351 KGSF #1 02/18/13 SITP 0 2394 0.8763 2801 0.2204 3196 KGSF #1 04/17/13 SITP 0 2892 0.8965 1 3372 -0.0034 3761 KGSF #1 05/11/13 SITP 0 2854 0.8946 3329 0.0020 3721 KGSF #1 07/13/13 iBHP 6385 3311 0.8938 3309 0.0080 3702 2013/2014 Injection and Production Cycle KGSF #1 07/13/13 BHP 6385 3311 0.8938 3309 0.0080 3702 KGSF #1 08/20/13 SITP 0 2.815 0.8939 3303 0.0080 3695 KGSF#1 10/11/13 SITP 0 2,775 0.8918 3257 0.0294 3652 KGSF #1 12/12/13 SITP 0 2.429 0.8783 2859 0.1983 3255 KGSF #1 iD4/18/14 SITP 0 3.117 0.9131 3647 -0.0878 3994 KGSF #1 05/05/14 SITP 0 2,917 0.8997 3419 -0.0112 3800 KGSF #1 106/30/14 SITP 0 2,902 0.8988 3402 -0.0091 3785 2014/2015 Injection and Production Cycle KGSF #1 06/30/14 SITP 0 2,902 0.8988 3402 -0.0091 3785 KGSF #1 10/14/14 SITP 0 2,656 0.8863 3120 0.0996 3520 KGSF #1 10/29/14 SITP 0 2,640 0.8857 3102 0.1285 3502 KGSF #1 11/14/14 SITP 0 2,605 0.8843 3062 0.1537 3462 KGSF #1 12/04/14 SITP 0 2,628 0.8852 3088 0.1548 3489 KGSF #1 12/31/14 SITP 0 2,649 0.8860 3112 0.1553 3513 KGSF #1 01/09/15 IBHP 4 6384 3,103 0.8857 3102 0.1559 3503 KGSF #1 02/22/15 ISITP 0 2,595 0.8839 3050 0.1911 3451 KGSF#1 KGSF #1 KGSF#1 04/01/15 04/27/15 05/14/15 SITP SITP SITP 0 0 0 2,557 2,224 2,112 0.8825 0.8746 0.8737 3006 2621 2491 0.2237 0.3545 0.4096 3407 2997 2851 KGSF #1 05/16/15 BHP 6 6369 2.474 0.6737 2474 0.4098 2932 KGSF #1 05/30/15 SITP 0 2,175 0.8741 2565 0.3826 234 KGSF#1 06/15/15 SITP 0 2,172 0.8741 2561 0.3880 2930 KGSF #1 07/02/15 SITP 0 2.184 0.8742 2575 0.3886 2946 KGSF #1 KGSF#1 07/15/15 08/03/15 ISITP 1 SITP 0 0 2.120 1,998 0.8738 0.8738 2501 2358 0.4095 0.4627 2862 2699 KGSF #1 08/16/15 -SITP 0 1.942 0.8742 2293 0.5008 2623 KGSF #1 08/25/15 BHP 1 6371 2,238 0.8747 2238 0.5435 2559 KGSF#1 09/03/15 SITP 0 1,611 0.8788 1993 0.5755 2268 KGSF#1 09/14/15 SITP 0 0.8760 2137 0.5635 2440 KGSF #1 09/28/15 SITP 0 0.8760 2137 0.5909 2440 KGSF #1 10/08/15 SITP 0 0.8766 2101 0.6022 2397 KGSF #1 11/13/15 SITP 0 d19 0.8742 2580 0.4528 2951 KGSF #1 11/18/15 SITP 0 0.8737 2463 0.46042819 KGSF #1 12/OB/15 SITP 0 0.8830 3022 0.2585 3423 yf__ wwJ KGSF #1 01/19/16 SITP 0 2,830 0.8951 7 3327 0.1276 3716 KGSF #1 02/01/16 SITP 0 2,814 0.8942 3308 0.1293 3699 KGSF #1 KGSF #1 02/23/16 03/04/16 SITP BHP 0 6390 2,757 2,675 0.8913 0.8875 3244 3150 0.1408 0.1761 3640 3549 KGSF #1 03/15/16 SITP 0 2.665 0.8870 3139 0.1803 3538 KGSF #1 KGSF #1 04/23/16 05/03/16 SITP SITP 0 0 2,449 2,650 0.8793 0.8864 2890 3122 0.2023 0.2000 3287 3522 KGSF #1 KGSF #1 06/23/16 07/14/16 SITP SITP 0 0 2.950 2,970 0.9022 0.9034 3463 3485 0.0551 0.0196 3838 3858 KGSF #1 KGSF #1 08/13/16 10/26/16 SITP SITP 0 0 3,000 2.957 0.9054 0.9026 3519 3470 0.0074 -0.0037 3887 3845 KGSF #1 11/25/16 ISITP 0 3,057 0.9092 3583 -0.1047 3941 KGSF #1 12/20/16 ISITP 0 2,914 0.8999 3422 -0.0440 3802 KGSF#1 01/16/17 1 SITP 0 3.040 0.9080 3564 -0.1165 3924 KGSF #1 103/12/17 SITP 0 2.810 0.8940 3304 -0.0656 3696 KGSF #1 04/30/17 -SITP 0 2,843 0.8958 3341 -0.0119 3730 KGSF #1 KGSF #1 05/31/17 06/30/17 SITP SITP 0 0 2,469 2,688 0.8798 0.8880 2913 3165 0.1795 0.1111 3311 3564 KGSF #1 07/30/17 SITP 0 2,832 0.8952 3329 0.0473 3719 KGSF#1 08/31/17 SITP 0 2.886 0.8983 3390 0.0005 3774 KGSF #1 09/24/17 SITP 0 2,886 0.8983 3390 -0.0036 3774 KGSF #1 KGSF #1 10/g 11/SITP SITP 0 0 2.811 2,802 0.8941 0.8936 3305 3295 0.0310 0.0351 3697 3687 KGSF #1 KGSF#1 12/SITP 12/SITP 0 0 2,801 2,781 0.8936 0.8925 3294 3271 0.0373 0.0462 3686 3665 endo wwd O...d• KGSF #1 01/14/18 SITP 0 2.760 0.8915 3247 0.0593 3642 KGSF #1 03/08/18 SITP 0 2.395 0.8778 2828 0.2254 3221 KGSF #1 03/18/18 SITP 0 2.389 0.8777 2821 0.2258 3214 KGSF #1 05/03/18 SITP 0 2.223 0.8746 2627 0.3091 3004 KGSF #1 05/19/18 SITP 0 2,230 0.8747 2636 0.3096 3013 KGSF #1 07/27/18 ISITP 1 0 2,263 0.8752 2674 0.3101 3055 KGSF#1 08/31/18 SITP 0 2,272 0.8753 2684 0.3104 3067 KGSF #1 11/30/18 ISITP 0 2,231 0.8747 2637 0.3272 3014 KGSF #1 12/31/18 ISITP 0 2,260 0.8751 2670 0.3257 1 3051 KGSF#1 KGSF #1 01/06/19 02/14/19 SITP SITP 0 0 2.266 2,325 0.8756 0.8768 2703 2774 0.3257 0.2939 3087 3164 KGSF #1 102/24/19 SITP 0 2,400 0.8786 2864 0.2630 3259 KGSF #1 103/10/19 SITP 0 2.388 0.8783 2849 0.2628 3244 KGSF #1 03/21/19 SITP 0 2,400 0.8786 2864 0.2833 3259 KGSF #7 I04/09/19 SITP 1 0 2,367 0.8777 2824 0.2965 3217 KGSF #1 KGSF #1 04/29/19 05/14/19 SITP SITP 0 0 2,301 2.307 0.8763 0.8764 2745 2752 0.3163 0.3161 3133 3141 KGSF #1 D5/31/19 SITP 0 2,324 0.8767 2773 0.3162 3162 KGSF #1 06/23/19 SITP 0 2,273 0.8757 2712 0.3253 3097 KGSF #1 108/20/19 SITP 0 2,228 0.8750 2658 0.3562 3038 KGSF #1 �08/31/19 SITP 0 2,163 0.8742 2580 0.3770 2951 KGSF #7 10/20/19 SITP 0 2,777 0.8945 3314 0.1269 3705 KGSF #1 11/07/19 SITP 1 0 2.757 0.8934 3290 0.1283 3683 KGSF #1 11/25/19 SITP 0 2,746 0.8928 3277 0.1266 3671 KGSF #1 12/31/19 SITP 0 2,349 0.8773 2803 0.2830 3195 2021 Injection and Production Cycle KGSF 1A 12/02/20 SITP N/A 0 3,194 1.0188 3730 0.1212 3661 KGSF 1A 112123r2o SITP N/A 0 2,988 1.0011 3496 0.1746 3492 KGSF 1A 01/07/21 SITP N/A 0 2,548 0.9720 2998 0.2360 3084 KGSF 1A 01/12/21 SITP N/A 0 2,894 0.9939 3390 0.2599 3411 KGSF 1A 03/02/21 SITP N/A 0 2,509 0.9700 2954 0.4025 3045 KGSF 1A 03/17/21 SITP N/A 0 2,395 0.9647 2825�0.4584 2928 KGSF 1A 03/25/21 SITP N/A 0 2,324 0.9617 2744866 2854 KGSF 1A 04/14/21 SITP N/A 0 2,493 0.9693 2936 0.5009 3029 KGSF 1A 06/08/21 SITP N/A 0 3,624 1.0637 4216 0.0258 3964 KGSF 1A 06/14/21 SITP N/A 0 3,615 1.0626 4206 0.0122 3958 KGSF 1A 11/05/21 SITP N/A 0 3,472 1.0465 4044 -0.0498 3864 KGSF 1A 11/21/21 SITP N/A 0 3,401 1.0390 3964 -0.0203 3815 KGSF 1A 11/29/21 SITP N/A 0 3,407 1.0396 3971 -0.0188 3820 KGSF 1A 12/18/21 SITP N/A 0 3,289 1.0277 3837 0.0275 3734 KGSF 1A 12/21/21 SITP N/A 0 3,273 1.0261 3819 0.0349 3721 KGSF 1A 12/23/21 SITP N/A 0 3,275 1.0264 3822 0.0352 3724 KGSF 1A 12/28/21 SITP N/A 0 3,256 1.0246 1 3800 0.0444 3709
